package com.example.lotterysystem.common.utils;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.util.CollectionUtils;
import org.springframework.util.StringUtils;

import java.util.Collection;
import java.util.concurrent.TimeUnit;

/**
 * @Author xuejiao
 * Data 2025/4/30 10:07
 */

@Configuration
public class RedisUtil {
    private static final Logger logger = LoggerFactory.getLogger(RedisUtil.class);

    /**
     * RedisTemplate:先将存储的数据转换成字节数组(不可读),再存储到redis中，读取的时候按照字节数组读取
     * StringRedisTemplate:直接存放的就是string（可读）
     */
    @Autowired
    private StringRedisTemplate stringRedisTemplate;


    /**
     * 设置值
     * @param key
     * @param value
     * @return
     */
    public boolean set(String key, String value) {
        try {
            stringRedisTemplate.opsForValue().set(key,value);
            return true;
        } catch (Exception e) {
            logger.error("RedisUtil error, set({}, {})", key, value, e);
            return false;
        }
    }

    /**
     * 设置值（包含过期时间）
     * @param key
     * @param value
     * @param time
     * @return
     */
    public boolean set(String key, String value,Long time) {
        try {
            stringRedisTemplate.opsForValue().set(key,value,time, TimeUnit.SECONDS);
            return true;
        } catch (Exception e) {
            logger.error("RedisUtil error, set({}, {}, {})", key, value, time, e);
            return false;
        }
    }

    /**
     * 获取值
     * @param key
     * @return
     */
    public String get(String key) {
        try {
            return StringUtils.hasText(key)
                    ? stringRedisTemplate.opsForValue().get(key)
                    : null;
        } catch (Exception e) {
            logger.error("RedisUtil error, get({})", key, e);
            return null;
        }
    }

    /**
     * 删除值
     * @param key
     * @return
     */
    public Boolean del(String... key) {
        try {
           if(null != key && key.length > 0) {
               if(key.length == 1) {
                   stringRedisTemplate.delete(key[0]);
               } else {
                   stringRedisTemplate.delete(
                           (Collection<String>) CollectionUtils.arrayToList(key)
                   );
               }
           }
           return true;
        } catch (Exception e) {
            logger.error("RedisUtil error, del({})", key, e);
            return false;
        }
    }

    /**
     * 判断key是否存在
     * @param key
     * @return
     */
    public boolean hasKey(String key) {
        try{
            return StringUtils.hasText(key)
                    ? stringRedisTemplate.hasKey(key)
                    : false;
        }catch (Exception e){
            logger.error("RedisUtil error, hasKey({})", key, e);
            return false;
        }
    }
}
